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• AttributeError : '_io.BytesIO' object has no attribute 'endswith' when attempting to check audio and video codec from base64 video file in Django

  12 novembre 2023, par mahmudsajib

  I'm currently working on a Django project where I need to check the audio and video codec of a base64-encoded video file. To achieve this, I've implemented a function that decodes the base64 string into binary data and then attempts to load the video clip using MoviePy. However, I'm encountering an AttributeError : '_io.BytesIO' object has no attribute 'endswith' when trying to run the code.

  


  Here's the relevant part of the code :

  


  import base64
from io import BytesIO
from moviepy.editor import VideoFileClip

def get_video_codec_info(base64_data):
    # Decode base64 string into binary data
    _format, _file_str = base64_data.split(";base64,")
    binary_data = base64.b64decode(_file_str)

    # Load the video clip using MoviePy
    clip = VideoFileClip(BytesIO(binary_data))

    # Get information about the video codec
    codec_info = {
        'video_codec': clip.video_codec,
        'audio_codec': clip.audio_codec,
    }

    return codec_info


  


  The error occurs at the line clip = VideoFileClip(BytesIO(binary_data)) and it seems related to the use of BytesIO. I've tried to find a solution, but I'm stuck at the moment.

  


  Any suggestions on how to resolve this issue or alternative approaches to check the audio and video codec of a base64-encoded video file in Django would be greatly appreciated. Thanks !

  


• ffmpeg - output includes combined video stream from inputs but also exact video streams from inputs [closed]

  17 juillet 2024, par Will

  Hi I'm using ffmpeg to transcode some video files from prores or dv to h264/mov. Also I want to add a logo on it and make some other changes.
The command line I use is

  


  ffmpeg -i input.mov -i logo.png -c:a aac -c:v libx264 -pix_fmt yuv420p -crf 18 -map 0:a? -map 0:v -filter_complex "yadif,[1]scale=iw*1:-1[wm];[0:v:0][wm]overlay=main_w-overlay_w-5:5" -disposition:v:0 default output_h264.mov

  


  And what I got has three video streams. One for the logo,one for the video with logo which is what I want only, and one for original video.

  


  I tried the temp way to solve is to put the default video stream as the second one as you can see for -disposition:v:0 default. And it plays that stream defaultly using VLC or QuickTime. But when I tried to upload it on Vimeo or Youtube, it uses another stream to play.

  


  ---

  


  How can I change the command line to let ffmpeg only output that combined stream ? Thanks !

  


• avconv : rename transcode_audio/video to decode_audio/video.

  18 mai 2012, par Anton Khirnov

  avconv : rename transcode_audio/video to decode_audio/video.